G01J 2003/1226
Interference filters
Official title: {Interference filters}
G01J2003/1226 (Interference filters) appears on 519 US grants and 515 published applications in this corpus.
Search patents in G01J- Granted patents
- 519
- Published applications
- 515
- Assignees
- 300
- Inventors
- 1,001
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 12 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 14 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 6 |
| 2003 | 6 | 7 |
| 2004 | 1 | 3 |
| 2005 | 4 | 8 |
| 2006 | 7 | 7 |
| 2007 | 4 | 13 |
| 2008 | 6 | 8 |
| 2009 | 5 | 7 |
| 2010 | 5 | 10 |
| 2011 | 4 | 12 |
| 2012 | 9 | 8 |
| 2013 | 9 | 19 |
| 2014 | 12 | 28 |
| 2015 | 15 | 19 |
| 2016 | 26 | 35 |
| 2017 | 31 | 41 |
| 2018 | 25 | 28 |
| 2019 | 37 | 37 |
| 2020 | 31 | 33 |
| 2021 | 35 | 48 |
| 2022 | 25 | 46 |
| 2023 | 37 | 35 |
| 2024 | 35 | 24 |
| 2025 | 33 | 24 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01J 2003/123Indexed discrete filtersIndexing code97
- G01J 2003/1234Continuously variable if [cvif]Indexing code93
- G01J 2003/1239And separate detectorsIndexing code91
- G01J 2003/1243Pivoting if or other position variationIndexing code69
- G01J 2003/1247TuningIndexing code64
- G01J 2003/1252Using "resonance cell"Indexing code23
Recent patents
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- Temperature-robust calibration path optical design24 Sep 2026US 2026/0287423 A1Trinamix GmbH
- Optical arrangement and confocal chromatic distance sensor16 Jul 2026US 2026/0202184 A1Klingelnberg GmbH
- Spectral sensor system with spatially modified center wavelengths16 Jul 2026US 2026/0202248 A1Spectricity
- Optical filter arrangement25 Jun 2026US 2026/0177732 A1Admesy B.V.
- Adjustable single-channel time-domain sampling filter, spectrometer, and detection method2 Apr 2026US 2026/0092812 A1Glitterintech (Xuzhou) Limited
Most cited
By later US patents
- Colorimeter and calibration system293US 5,272,518 AHewlett-Packard Company · 1993
- Fourier domain optical coherence tomography employing a swept multi-wavelength laser and a multi-channel receiver257US 7,391,520 B2Carl Zeiss Meditec AG · 2008
- Spectrometer apparatus254US 5,166,755 A1992
- Molecular gas analysis by Raman scattering in intracavity laser configuration180US 4,648,714 AUniversity of Utah · 1987
- Fluorescence imaging system177US 4,786,813 AHighTech Network SCI AB · 1988